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Question

Noora claims that her weight is greater than 55 Kg but less than 62 Kg. Her friend, Sona, does not agree with her and says that Noora’s weight is greater than 50 Kg, but less than 60 Kg. However, her mother’s view is that her weight cannot be greater than 58 Kg. If all 3 of them are correct, what could be the average of all the possible integral values of the weight of Noora?

A
56. 5 Kg
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B
57 Kg
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C
56 Kg
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D
None of the above
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Solution

The correct option is B 57 Kg
According to Noora, her weight (w) is → 55 < w < 62
According to her friend, Noora’s weight (w) is → 50 < w < 60
According to her mother, Noora’s weight (w) is → w
58 (she said not greater than 58, so, the weight can be equal to 58)
Possible weights are → 56, 57, and 58.
Average of possible weights =
56+57+583=57 Kg

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